Resources / book for designing a website on Plone

I am new to Plone and I am trying to design a website with Plone. Please let me know the best resources on this which would help me do this. Many thanks.

Define "design a website"?!

The design and layout is completely separated from the Plone functionality. Use "Diazo" for applying an arbitrary theme to Plone using transformation and mapping rules.

https://docs.plone.org/adapt-and-extend/theming/index.html
https://training.plone.org/5/theming/